CVE-2005-2904: Zebedee 2.4.1, when "allowed redirection port" is not set, allows remote attackers to cause a denial of servic

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MEDIUM 5.0DOWNGRADE

CVE-2005-2904 is a medium-severity flaw (CVSS 5.0) affecting zebedee. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Zebedee 2.4.1, when "allowed redirection port" is not set, allows remote attackers to cause a denial of service (application crash) via a zero in the port number of the protocol option header, which triggers an assert error in the makeConnection function in zebedee.c.

Why this priority

EPSS top 6%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	7.1% (top 6%)
CISA exploited list	No
Published	2005-09-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: zebedee

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-09-14 20:03 UTCPublished CVE record published
2026-06-16 22:15 UTCUpdated Record last modified

zebedee zebedee DOWNGRADE

Affected: 2.4.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4.1

1. Check installed version

apt-cache policy zebedee || rpm -q zebedee || zebedee --version

2. No fixed release: DOWNGRADE to a release before 2.4.1 (Debian / Ubuntu)

apt-cache madison zebedee sudo apt install zebedee=<VERSION_BEFORE_2.4.1> sudo apt-mark hold zebedee

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list zebedee sudo dnf downgrade zebedee-<VERSION_BEFORE_2.4.1> sudo dnf versionlock add zebedee

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Zebedee 2.4.1 - Remote Denial of Service

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2005-2904?

zebedee: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-2904 being exploited?

CVE-2005-2904 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2005-2904 affect?

CVE-2005-2904 affects zebedee. Severity is medium (CVSS 5.0). Zebedee 2.4.1, when "allowed redirection port" is not set, allows remote attackers to cause a denial of service (application crash) via a zero in the port number of the protocol option header, which triggers an assert error in the makeConne

How urgent is CVE-2005-2904?

Priority 46/100. EPSS top 6%: very likely to be exploited; Public exploit reference

References

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